axelson
How many Elixir versions should libraries support?
I’m curious how many minor Elixir versions library authors generally try to support. I’m thinking that a good default is 3 minor versions which will equate to roughly 1.5 years (and is the approach mentioned in Library builders: What versions of Elixir to support? When to stop supporting older Elixir versions? - #3 by Qqwy). And of course the previous versions of a library are still available for users that are unable to upgrade elixir for some reason.
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benwilson512
@axelson I’m also a fan of supporting basically 2 major versions of a lib that have different Elixir version reqs. Eg: some library named Foo that has:
Foo v1.5.X supports Elixir 1.10 and 1.11, will receive bug fixes but no new features.
Foo v1.6.X supports Elixir 1.12, gets new features.
It depends a bit on how important new Elixir features are to your app.
dimitarvp
I’d support anything I could but it depends how easy it would be to just copy-paste the functions from newer Elixir releases to a dedicated Compat module namespace. I am entertaining the idea for a long time and I think it can work out fine.
Having said that, I’d aim for current version plus 2 versions behind, e.g. 1.12, 1.11 and 1.10.
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